Lamp



FIG. 1 is a top, front perspective view of a lamp showing my new design;

FIG. 2 is a bottom, rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

Grayscale shading illustrates contour, not any particular color. 

CLAIM The ornamental design for a lamp, as shown and described. 